﻿#region Copyright & licence

// This file is part of Refix.
// 
// Refix is free software: you can redistribute it and/or modify
// it under the terms of the GNU Lesser General Public License as
// published by the Free Software Foundation, either version 3 of the
// License, or (at your option) any later version.
// 
// Refix is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
// GNU Lesser General Public License for more details.
// 
// You should have received a copy of the GNU Lesser General Public
// License along with Refix.  If not, see <http://www.gnu.org/licenses/>.
// 
// Copyright (C) 2010-11 David Musgrove and others.

#endregion

using System;

using Refix.Core.Properties;

namespace Refix.Core.Commands
{
    public class Help : Command
    {
        protected override string HelpText
        {
            get { return ResourceDispenser.GetString("HELP_HELP"); }
        }

        public override bool Validate()
        {
            ShowSplash();

            // Help should always display.
            return true;
        }

        public override bool Execute()
        {
            if (Options.Arguments.Count > 0)
            {
                Command command;
                if (TryParse(Options.Arguments[0], out command))
                {
                    command.ShowHelp();
                    return true;
                }
            }

            string template = OutputWriter.Verbository == OutputVerbosity.Verbose
                                  ? ResourceDispenser.GetString("HELP_VERBOSE")
                                  : ResourceDispenser.GetString("HELP");
            System.Version version = typeof(Command).Assembly.GetName().Version;
            OutputWriter.WriteLine(OutputVerbosity.Quiet, template, version);
            return true;
        }
    }
}